Membrane Transporters Flashcards
1
Q
Na+ is constantly ____, trying to get to equilibrium.
A
leaking into the cell
2
Q
What is equilibrium for Na+?
A
getting Vm to equal E(Na)
3
Q
When the ______ are equal and opposite, Vm doesn’t change.
A
Na+ and K+ currents
4
Q
When the Na+ and K+ currents are equal and opposite, _____.
A
Vm doesn’t change
5
Q
___ is constantly leaking into the cell, trying to get to equilibrium.
A
Na+
5
Q
A cell with many more _____ than Na+ channels will have a membrane potential close to ___.
A
K+channels; E(K)
8
Q
A cell with many more Na channels than K+ channels will have a membrane potential close to ____.
A
E(Na)
8
Q
What is the value of E(K+)?
A
-90mV
9
Q
When the Na+ and K+ currents are ____ and _____, Vm doesn’t change.
A
equal; opposite
10
Q
What is the value of E(Na)?
A
60mV
